smithwick



Patented Nov. 8, I898.

N. A; SMITHWICK.

VERTICAL SUCTION PUMP.

(Application filed Jan. 11. 1898.)

4 SheetsSheet I.

(No Model.)

\Nitnesses.

57 @Artorney.

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N0. 6l3,730. Patented NOV. 8, 1898. N. A. SMITHWICK.

VERTICAL SUCTION PUMP.

(Application filed Jan. 11, 1898.)

4 Sheets-Sheet 3.

{No Model.)

W itnesses.

m t n e v n I 6 aw J? Attorney.

No. 6|3,730. Patentgd Nov. 8, I898.

N. A. SMITHWICK.

VERTICAL SUCTION PUMP.

( Ap plication filed Jan. 11, 1898.)

(No Model.)

Inventor.

4 Sheets-Sheet 4.

m: uonms PEYERS C41. Pnurmuma. WASNINOTON. n. c.

Nine STATES ATENT rrrcn.

NATHANIEL A. SMITHWVICK, OF SENECA FALLS, NEWV YORK, ASSIGNOR TO THE GOULDS MANUFACTURING COMPANY, OF SAME PLACE.

VERTICAL SUCTION-PUMP.

SPECIFICATION forming part of Letters Patent No. 613,730, dated November 8, 1898.

Application filed January 11, 1898. Serial No. 666,297. (No model.)

To all whom it may concern:

Be it known that I, NATHANIEL A. SMITH- WICK, of Seneca Falls, in the county of Seneca, in the State of New York, have invented new and useful Improvements in Vertical Suction-Pumps, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

My invention relates to vertical suctionpumps for use with paper-making machines and for any purpose wherein suction power and capacity are required; and the main object is to provide a pump having great suction power and capacity, that may be used with modern or fast-running paper-machines.

To this end my invention consists in the combination, with a plurality of cylinders, a base or casing inclosing and supporting said cylinders, a partition in said casing extending at right angles to the cylinders, surrounding them and dividing the casing into two compartments, the lower compartment formin g avacuum-chamber, inlet and outlet openings in the base, a diaphragm below each cylinder containing induction-valves, an adj ustable support for the diaphragm, and an aperture in the side of the casing opposite the said diaphragm and support, a piston in each cylinder carrying eduction valves, pistonrods passing through the casing, and suitable means for reciprocating said rods; and my invention consists in certain other combinations of parts, hereinafter described, and specifically set forth in the claims.

In the drawings hereto annexed and forming a part of this specification, Figure 1 is an end elevation of my improved pump. Fig. 2 is a side elevation of the same. Fig. 3 is an enlarged side elevation of the interior of the casing or base, the latter and some of the inclosed parts being shown in section. Fig. 4 is a top plan view of one of the diaphragms on which the induction-valves are mounted. Fig. 5 is an enlarged fragmentary sectional view showing the packing between edge of the diaphragm and the lower edge of a cylinder. Fig. 6 is a horizontal sectional view of one-half of the casing, taken on line a; a: of Fig. 7 and Fig. 7 is a central vertical sectional view of the base or casing, taken on line y y of Fig. 6.

Referring specifically to the drawings, A

is the casing or hollow base of the pump, the

ends of which are concentric with the outer cylinders a a, contained therein, three cylinders being arranged side by side in a vertical position within the said base. Thecentral portion of the base is broader than the end portions, one side of which is provided with the inlet and outlet openings B and B near the upper part, while the other side is provided with the three openings 0, O, and O opposite the supports for the diaphragms and through which the supports may be adjusted, valves repaired, or the diaphragms and supporting parts, hereinafter referred to, entirely removed and inserted.

Mounted on the top of the base A, on opposite sides of the center thereof, are a pair of vertical castings D D, upon the upper ends of which are mounted the journal-bearings for the horizontal crank-shaft E. Said shaft has a crank F in its center,which is connected by a pitman-rod f with a cross-head moving between guides G, secured between thegvertical castings D D, the said cross-head being connected to the piston-rod H, secured to the piston I, movable in the central cylinder a. To this crank-shaft I attach at each end a crank-disk F and near the center a large gear- Wheel J. Each of the crank disks has a crank-pin f, which gives motion to the pitman f. These pitmen, acting through the cross-heads h h between the guides G G, in turn give motion to'the piston-rods H H and thence to the pistons I I, working in the end cylinders in the base. 7

K is a driving-shaft journaled in bearings on brackets 70, mounted on one side of the vertical castings D D. This shaft is provided with a pulley k for the driving-belt and a pinion lo, meshing with the gear-wheel J, through which motion is communicated to the crank-shaft E.

L and L are the horizontal partitions in the casin g which divide the latter into three compartments and surround and support the cylinders a, a, and a. The lower partition is provided with apertures cl d, so that the water and air can freely pass through it. The two lower compartments are in direct communication with the inlet 13, while the upper compartment above the partition L is in communication with the discharge or outlet B. This separation of the outlet from the inlet is effected by a vertical partition L, extending longitudinally in the casin g to one side thereof above the partition L.

The cylinders are flanged on their upper edge and are secured in place by means of bolts orscrews b b, passing through the flanges and entering the partition L, on which the flanges rest. The cylinders are introduced through the top of the casing A, which is provided with large removable plates, one above each cylinder.

The base is perforated below each cylinder simply to permit the boring of the base to receive the cylinders, the aperture being closed by a plate 0 when in use.

Mounted upon the base within the casing is a shoe M, which is held between guides m an integral with the base at its sides, and an adjustable stop m at its rear side held in a lug m", rising from the base. The said shoe has a circular cavity in which rests the internally-threaded ring N, secured Within the hand-wheel N, by which the ring is rotated in its bearing to adjust the diaphragm 0, containing the induction-valves e, &c., or raise and lower the same. The said diaphragm is cup-shaped, its outer edge being provided with a groove 2' to contain a paeking-ringj, of rubber or other suitable material, and receive the lower edge of one of the cylinders, which edge when the diaphragm is raised sufficiently becomes embedded in the ring, making a tight joint, as shown clearly in Fig. 5 of the drawings. Vebs Z Z extend downward from the lower side of the diaphragm and radiate from the center thereof and support at their outer ends an externally-threaded ring N, which engages the threaded ring N. hen the diaphragm is raised sufficiently, the ring N and wheel N are held against turn ing by a set-screw 71, passing through a lug 'n on the shoe M near its front edge.

Any number of valves 6 may be mounted on the diaphragm, preferably eight, as indicated by the small circles shown in full and broken lines in Fig. 4 of the drawings. A less number of valves is shown on the diaphragm (shown in section in Fig. 3) to avoid confusion. The valves are ordinary springoperated valves bearing on the top side of the diaphragm, so that they will be raised and opened when the piston ascends, and therefore do not require further description.

It will be noticed by reference to Fig. t that the diaphragm is provided with an eight-sided flange t" on its exterior just below the top edge to engage with fiat bearing surfaces or guides 19 p on the casing A to prevent the diaphragm from turning.

The piston is secured to the lower end of the piston-rod in the usual manner and is provided with packing-rings q in a cavity on its exterior between it and the inner surface of the cylinder. The number of valves 0* which are raised and opened upon the downward movement of the piston maybe varied.

The parts belonging to each cylinder or pump are the same, and as a whole constitutes a single-acting triplex suction-pump. The cranks on the crank-shaft are one-hundred and twenty degrees or equal distances apart, so that an almost perfect balance is maintained during each complete revolution of the shaft. I do not wish to be limited, however, to a triplex pump nor to the pre cise construction of parts shown and described herein, as it willbe obvious that the number of pumps and the construction of the parts may be varied without departing from my invention.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a suction-pump, the combination with a plurality of cylinders, a casing inclosing said cylinders, a partition in said casing supporting said cylinders and extending at right angles to them and dividing the easing into two compartments, inlet and outlet openings for said compartments, a diaphragm at one end of each cylinder containing inductionvalves, an adjustable support for the diaphragm, an aperture in the side of the casing opposite the said diaphragm and support, a piston in each cylinder carrying eduetionvalves, piston-rods passing through the easing, and suitable means for reciprocating said rods, as set forth.

2. I11 a suction-pump, the combination with a cylinder, a casing inclosing said cylinder, a partition in said casing supporting said cylind er and extending at right angles to it, inlet and outlet openings, a diaphragm engaging one end of the cylinder containing valves, a support for the diaphragm, means to adjust the diaphragm, an aperture in the side of the casing opposite the said diaphragm and support, a piston provided with valves in the eylinder and a piston-rod passing through the casing, and means for reciprocating said rod, as set forth.

3. Inasuetion-pum p, the combination with a vertical cylinder, a casing inclosing said cylinder, a horizontal partition surrounding the cylinder secured to the same, and dividing the easing into two compartments, an inlet communicating with the lower compartment and an outlet communicating with the upper compartment, a diaphragm engaging one end of the cylinder containing valves, a support for the diaphragm, means to adjust the diaphragm, an aperture in the side of the easing opposite the said diaphragm and support, a piston provided with valves in the cylinder and passing through the casing, and means for reciprocating said piston, as set forth.

4-. In asuction-pump, the combination with a cylinder, a casing inclosing said cylinder, a partition in said casing supporting said cylinder and extending at right angles to it, inlet and outlet openings, a cup-shaped diaphragm having its upwardly-turned edge in close engagement with the lower edge of the cylinder, valves in the diaphragm, an externally-threaded downward extension of the diaphragm, a circular bearing on the base below the said extension, a threaded ring in the bearing and engaging the threaded part of the diaphragm, an aperture having a removable cover in one side of the casing, opposite said diaphragm, a piston provided with valves in the cylinder and a piston rod passing through the casing and means for reciprocating said rod, as set forth.

5. In a suction-pump, the combination with a cylinder, a casing inclosing said cylinder, a partition in said casing supporting said cylinder, and extending at right angles to it, inlet and outlet openings, a cup-shaped diaphragm having its upwardly-turned edge provided with a groove to receive the lower end of the cylinder, a ring of packing material in the groove to form a tight joint, valves in the diaphragm, an externally-threaded downward extension of the diaphragm, a circular bear= ing on the base below the said extension, a threaded ring on the bearing and engaging the threaded part of the diaphragm, an aperture having a removable cover in one side of the casing opposite said diaphragm, a piston provided with valves in the cylinder and a piston-rod passing through the casing and means for reciprocating said rod, as set forth.

6. In a suction-pump, the combination with a cylinder, a casing inclosing said cylinder, a partition in said casing supporting said cylinder and extending at right angles to it, inlet and outlet openings, a cup-shaped diaphragm having its upwardly-turned edge provided with an annular groove, a ring of packing material in the groove for the lower end of the cylinder to engage, a flange on the exterior of the said diaphragm having fiat sides,

parts on the casing to engage said flat sides, valves in the diaphragm, an externallythreaded downward extension of the diaphragm, a circular bearing on the base below the said extension, a threaded ring on the bearing and engaging the threaded part of the diaphragm, an aperture having a removable cover in one side of the casing opposite said diaphragm, a piston provided with valves in the cylinder and a piston-rod passing through the casing and means for reciprocating said rod, as set forth.

'7. In a suction-pump, the combination with a vertical cylinder, a casing inclosing said cylinder, a horizontal partition surrounding the cylinder and secured to the same, and di- Viding the casing into two compartments, an inlet communicating with the lower compartment and an outlet communicating with the upper compartment, a cup-shaped diaphragm having its upwardly-turned edge provided with an annular groove, a ring of packing material in the groove for the lower end of the cylinder to engage, means for preventing said diaphragm from revolving, valves in the diaphragm, an externallythreaded downward extension of the diaphragm, a circular bearing on the base below the said extension, a threaded ring on the bearing and engaging the threaded part of the diaphragm, an aperture having a removable cover in one side of the casing opposite said diaphragm,'a piston provided with valves in the cylinder and a piston-rod passing through the casing, and means for reciprocating said rod, as set forth.

In testimony whereof I have hereunto signed my name.

NATHANIEL A. SMITHWIOK. 

